Patents by Inventor Masaru Takasaki
Masaru Takasaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20050150420Abstract: An aqueous ink comprising at least two dyes each having at least one ionic hydrophilic group in a molecule thereof, wherein at least one of said at least two dyes includes an azo dye represented by formula (1): wherein A and B each independently represents a substituted or unsubstituted monovalent aromatic group; or a substituted or unsubstituted monovalent heterocyclic group; R1 represents a hydrogen atom; a substituted or unsubstituted aromatic group; or a substituted or unsubstituted heterocyclic group; and X represents —CR2? or a nitrogen atom, and when X represents —CR2?, R2 represents a hydrogen atom or a substituent.Type: ApplicationFiled: December 14, 2004Publication date: July 14, 2005Applicant: Fuji Photo Film Co., Ltd.Inventors: Masaru Takasaki, Toshiki Fujiwara, Tomohiro Chino
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Publication number: 20050061201Abstract: An aqueous ink comprising at least one dye having at least one ionic hydrophilic group within a molecule thereof and represented by the following formula (1): wherein A and B each independently represents a substituted or unsubstituted monovalent aromatic group or a substituted or unsubstituted monovalent heterocyclic group, R1 represents a substituted or unsubstituted aromatic group excluding an unsubstituted phenyl group or a substituted or unsubstituted heterocyclic group, and R2 represents a substituent.Type: ApplicationFiled: September 15, 2004Publication date: March 24, 2005Applicant: Fuji Photo Film Co., Ltd.Inventors: Masaru Takasaki, Toshiki Fujiwara, Tomohiro Chino
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Patent number: 6808870Abstract: A light-sensitive silver halide grain containing at least one metal complex, wherein when an a-axis, a b-axis and a c-axis of a silver halide crystal lattice are each established taking as an origin a central metal of the metal complex incorporated into the silver halide grain, the metal complex has in a ligand thereof a site which can form any bond of a covalent bond, a dative bond and an ionic bond, or a bond in a mixed form of these bonds with a silver ion on a lattice point which does not exist on any of the a-axis, the b-axis and the c-axis. The silver halide photographic material has no reciprocity failure over a wide range of exposure illuminations without desensitization and decrease of contrast on the low intensity side.Type: GrantFiled: September 23, 2002Date of Patent: October 26, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Tadanobu Sato, Takahiro Matsuno, Masaru Takasaki, Tadashi Inaba
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Publication number: 20040187232Abstract: The invention provides a water-soluble ink capable of forming an image having good color hue and high fastness in various use and environmental conditions, which comprises a coloring composition comprising a disazo dye represented by the following formula 1: A1-N═N-A2-N═N-A3 and at least one other dye having a specific structure; in formula 1, A1, A2 and A3 each independently represents an aromatic group which may be substituted or a heterocyclic group which may be substituted, and A1 and A3 each is a monovalent group and A2 is a divalent group.Type: ApplicationFiled: January 7, 2004Publication date: September 30, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Tomohiro Chino, Toshiki Fujiwara, Masaru Takasaki
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Patent number: 6746835Abstract: Disclosed is a thermally processed image recording material containing, on one side of a support having an image-forming layer, a silver salt of an organic acid, a reducing agent and at least one kind of a compound represented by the following formula (1): wherein X and Y represent an electron-withdrawing group and M represents a counter cation, and the conjugate acid of the enolate anion in the formula (1) has a pKa value of 3.0-6.0. This thermally processed image recording material shows low fog, high Dmax, ultrahigh contrast and good storage stability.Type: GrantFiled: February 22, 2002Date of Patent: June 8, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsuyuki Watanabe, Masaru Takasaki, Toshihide Ezoe, Kohzaburoh Yamada, Yasuhiro Kawanishi, Masahiko Taniguchi
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Patent number: 6696234Abstract: A silver halide photosensitive material contains a compound of the following general formula (I): wherein A1a represents a group selected from among CR1aR2a, NR1a, an oxygen atom and sulfur atom, A1b represents a group selected from among CR1bR2b, NR1b, an oxygen atom and sulfur atom, and each of R1a, R2a, R1b, R2b and R3 represents a hydrogen atom or a substituent, provided that, in the groups of CR1aR2a and CR1bR2b, R1aR2a and R1bR2b may represent a single divalent substituent, n represents an integer of 1 to 4, provided that, when n is 2 or more, a plurality of A1bs may be the same or different.Type: GrantFiled: September 24, 2002Date of Patent: February 24, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Tadashi Inaba, Masaru Takasaki, Atsushi Matsunaga, Mamoru Sakurazawa, Shinichi Ichikawa
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Publication number: 20030194664Abstract: A light-sensitive silver halide grain containing at least one metal complex, wherein when an a-axis, a b-axis and a c-axis of a silver halide crystal lattice are each established taking as an origin a central metal of the metal complex incorporated into the silver halide grain, the metal complex has in a ligand thereof a site which can form any bond of a covalent bond, a dative bond and an ionic bond, or a bond in a mixed form of these bonds with a silver ion on a lattice point which does not exist on any of the a-axis, the b-axis and the c-axis. The silver halide photographic material has no reciprocity failure over a wide range of exposure illuminations without desensitization and decrease of contrast on the low intensity side.Type: ApplicationFiled: September 23, 2002Publication date: October 16, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Tadanobu Sato, Takahiro Matsuno, Masaru Takasaki, Tadashi Inaba
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Publication number: 20030190566Abstract: A silver halide photosensitive material contains a compound of the following general formula (I): 1Type: ApplicationFiled: September 24, 2002Publication date: October 9, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Tadashi Inaba, Masaru Takasaki, Atsushi Matsunaga, Mamoru Sakurazawa, Shinichi Ichikawa
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Patent number: 6482582Abstract: Disclosed in an image recording material comprising, on a support, a photosensitive silver halide, a reducing agent, a binder and a compound represented by the following Formula (1): wherein, in Formula (1), R1 and R2 each independently represent a substituent, R1 and R2 may be bonded to each other to form a ring, X represents a halogen atom, L represents a methylene group, m represents an integer of 0-7, Y represents a divalent bridging group, n represents 0 or 1 and Z represents a residue derived from a photographically useful compound. This image recording material exhibits high sensitivity, low fog and good storage stability, and is stable against fluctuation of development conditions.Type: GrantFiled: July 24, 2001Date of Patent: November 19, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsuyuki Watanabe, Masaru Takasaki
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Publication number: 20020164552Abstract: Disclosed is a thermally processed image recording material containing, on one side of a support having an image-forming layer, a silver salt of an organic acid, a reducing agent and at least one kind of a compound represented by the following formula (1): 1Type: ApplicationFiled: February 22, 2002Publication date: November 7, 2002Inventors: Katsuyuki Watanabe, Masaru Takasaki, Toshihide Ezoe, Kohzaburoh Yamada, Yasuhiro Kawanishi, Masahiko Taniguchi
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Patent number: 6383731Abstract: The object of the present invention is to provides a novel polyhalogenomethylsulfonyl compound which can be used for providing a thermally processed image recording material which has a high sensitivity, gives less fog, and has a good stock stability and a good image storage stability of dark and high temperature or light storage. According to the present invention, there is provided a polyhalogenomethylsulfonyl compound represented by the following formula (1), or salts thereof, or hydrates or solvates thereof: wherein Z1 and Z2 each independently represents a halogen atom; A represents a hydrogen atom or a halogen atom; and R1 represents an alkyl group having from 2 to 12 carbon atoms, which may have one or more substituents, an alkenyl group having from 2 to 12 carbon atoms, which may have one or more substituents, or an alkinyl group having from 2 to 12 carbon atoms, which may have one or more substituents.Type: GrantFiled: August 20, 2001Date of Patent: May 7, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Masaru Takasaki, Katsuyuki Watanabe, Hisashi Okamura
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Publication number: 20020048734Abstract: The object of the invention is to provide a photothermographic material high in sensitivity and image quality, and excellent in storability in the undeveloped state, which is used for medical images or photomechanical processes.Type: ApplicationFiled: August 14, 2001Publication date: April 25, 2002Inventors: Kouta Fukui, Masaru Takasaki, Katsuyuki Watanabe
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Publication number: 20020048716Abstract: Disclosed in an image recording material comprising, on a support, a photosensitive silver halide, a reducing agent, a binder and a compound represented by the following Formula (1): 1Type: ApplicationFiled: July 24, 2001Publication date: April 25, 2002Inventors: Katsuyuki Watanabe, Masaru Takasaki
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Patent number: 6376166Abstract: A heat-developable photosensitive material which comprises, on the same side of a support, at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a phenol compound represented by the following general formula (1), (d) a binder, and (e) a coupler compound: wherein V1 to V8 each independently represent a hydrogen atom or a functional group; L represents a bridging group consisting of —CH(V9)— or —S—; V9 represents a hydrogen atom or a functional group. The heat-developable photosensitive material causes extremely low fog and is suitable for photomechanical reproduction.Type: GrantFiled: March 30, 2000Date of Patent: April 23, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Toyohisa Oya, Katsuyuki Watanabe, Masaru Takasaki, Minoru Sakai
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Patent number: 6368782Abstract: A photothermographic material comprising, on one side of a support, at least one kind of photosensitive silver halide, a light insensitive silver salt of an organic acid, a reducing agent for silver ions and a binder, wherein the photosensitive silver halide has a mean grain size of 0.001 &mgr;m to 0.06 &mgr;m and the material comprises at least two kinds of organic polyhalogenated compounds at least one of which is an organic polyhalogenated compound represented by the following formula (1): wherein Z1 and Z2 independently represent a halogen atom, X1 represents a hydrogen atom or an electron withdrawing group, Y1 represents —CO— group or —SO2— group, Q represents an arylene group or a divalent heterocyclic group, L represents a bridging group, W1 and W2 independently represent a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group, and n represents 0 or 1.Type: GrantFiled: August 24, 2000Date of Patent: April 9, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Kouta Fukui, Masaru Takasaki, Katsuyuki Watanabe
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Patent number: 6350569Abstract: A heat-developable photographic material which contains a particular class of polyhalogenated organic compound having a water-soluble group in one or more layers on the side of the image-forming layer. The heat-developable photographic material can be obtained at a low cost and has much reduced fog and excellent storage stability.Type: GrantFiled: March 30, 2000Date of Patent: February 26, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsuyuki Watanabe, Hiroyuki Suzuki, Masaru Takasaki, Shigeo Hirano
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Publication number: 20020018955Abstract: ? The object of the present invention is to provides a novel polyhalogenomethylsulfonyl compound which can be used for providing a thermally processed image recording material which has a high sensitivity, gives less fog, and has a good stock stability and a good image storage stability of dark and high temperature or light storage.Type: ApplicationFiled: August 20, 2001Publication date: February 14, 2002Applicant: Fuji Photo Film Co., Ltd.Inventors: Masaru Takasaki, Katsuyuki Watanabe, Hisashi Okamura
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Patent number: 6344313Abstract: An object of the present invention is to provide a heat-developable photosensitive material of improved fluctuation of photographic performance (sensitivity, Dmin) arisen from fluctuation of development temperature condition (temperature, time) and storage time after heat development.Type: GrantFiled: March 30, 2000Date of Patent: February 5, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Takahiro Goto, Toshihide Ezoe, Hiroyuki Suzuki, Minoru Sakai, Hideki Maeta, Nobuaki Inoue, Masaru Takasaki
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Patent number: 6316670Abstract: The object of the present invention is to provides a novel polyhalogenomethylsulfonyl compound which can be used for providing a thermally processed image recording material which has a high sensitivity, gives less fog, and has a good stock stability and a good image storage stability of dark and high temperature or light storage. According to the present invention, there is provided a polyhalogenomethylsulfonyl compound represented by the following formula (1), or salts thereof, or hydrates or solvates thereof: wherein Z1 and Z2 each independently represents a halogen atom; A represents a hydrogen atom or a halogen atom; and R1 represents an alkyl group having from 2 to 12 carbon atoms, which may have one or more substituents, an alkenyl group having from 2 to 12 carbon atoms, which may have one or more substituents, or an alkinyl group having from 2 to 12 carbon atoms, which may have one or more substituents.Type: GrantFiled: July 18, 2000Date of Patent: November 13, 2001Assignee: Fuji Photo Film Co., Ltd.Inventors: Masaru Takasaki, Katsuyuki Watanabe, Hisashi Okamura
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Patent number: 4674014Abstract: A mounting structure for a vehicular lighting unit is provided with a restriction means to prevent the lighting unit from being dismantled from the outside of the vehicle without removing the cover member on the lighting unit.Type: GrantFiled: September 23, 1985Date of Patent: June 16, 1987Assignee: Nissan Motor Co., Ltd.Inventors: Kouichi Takatsuji, Masaru Takasaki